CN111903010B - Connector system, connector and connecting method - Google Patents

Connector system, connector and connecting method Download PDF

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Publication number
CN111903010B
CN111903010B CN201880091765.7A CN201880091765A CN111903010B CN 111903010 B CN111903010 B CN 111903010B CN 201880091765 A CN201880091765 A CN 201880091765A CN 111903010 B CN111903010 B CN 111903010B
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CN
China
Prior art keywords
connector
authentication
information
transmission line
switch
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Active
Application number
CN201880091765.7A
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Chinese (zh)
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CN111903010A (en
Inventor
礒山芳一
畑洋一
松本勉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Electric Industries Ltd
Yokohama National University NUC
Original Assignee
Sumitomo Electric Industries Ltd
Yokohama National University NUC
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Publication of CN111903010A publication Critical patent/CN111903010A/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
    • H01R13/6658—Structural association with built-in electrical component with built-in electronic circuit on printed circuit board
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/70—Structural association with built-in electrical component with built-in switch
    • H01R13/703—Structural association with built-in electrical component with built-in switch operated by engagement or disengagement of coupling parts, e.g. dual-continuity coupling part
    • H01R13/7036—Structural association with built-in electrical component with built-in switch operated by engagement or disengagement of coupling parts, e.g. dual-continuity coupling part the switch being in series with coupling part, e.g. dead coupling, explosion proof coupling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/70—Structural association with built-in electrical component with built-in switch
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R31/00—Coupling parts supported only by co-operation with counterpart
    • H01R31/06—Intermediate parts for linking two coupling parts, e.g. adapter
    • H01R31/065—Intermediate parts for linking two coupling parts, e.g. adapter with built-in electric apparatus
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
    • H04L9/3247—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving digital signatures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/20—Information technology specific aspects, e.g. CAD, simulation, modelling, system security

Abstract

The connector system includes: a first connector including a first transmission line; and a second connector including a second transmission line. The second connector includes a processing unit that performs an information transmission process of creating information on authentication and transmitting the information to the first connector. The first connector includes: a switch for switching between whether or not to electrically connect the first transmission line and the second transmission line to each other in a state where the first connector and the second connector are connected to each other; an authentication unit that performs an authentication process of authenticating the second connector based on the information received from the second connector; and a control unit that controls the switch based on a result of the verification process.

Description

Connector system, connector and connecting method
Technical Field
The invention relates to a connector system, a connector and a connecting method.
This application claims priority from japanese patent application No.2018-60259, filed on 27/3/2018, the entire contents of which are incorporated herein by reference.
Background
As a technique related to a connector, for example, japanese patent laid-open No.2017-17034 (patent document 1) discloses a bidirectional electronic connector as follows. That is, the bi-directional electrical connector includes a connector tab having opposing first and second major surfaces and a plurality of electrical contacts carried by the connector tab. The plurality of electrical contacts includes a set of first external contacts formed on the first major surface and a set of second external contacts formed on the second major surface. In the tab or body, each individual contact of the first contacts is electrically connected to a corresponding contact of the second contacts. In some embodiments, the contacts of the first and second contacts directly facing each other are integrally combined. In some other embodiments, the contacts of the first and second contacts in a diagonal relationship are integrally combined.
Reference list
[ patent document ]
Patent document 1: japanese patent laid-open No.2017-
Patent document 2: international publication No. WO2012/026353
Disclosure of Invention
(1) A connector system according to the present disclosure is provided with a first connector including a first transmission line and a second connector including a second transmission line. The second connector includes an information transmission process configured to perform creating information on the authentication and transmitting the information to the first connector. The first connector includes: a switch configured to select whether to electrically connect the first transmission line and the second transmission line to each other in a state where the first connector and the second connector are connected to each other; an authentication unit configured to perform an authentication process of authenticating the second connector based on the information received from the second connector; and a control unit configured to control the switch based on a result of the verification process.
(10) A connector according to the present disclosure is a connector including a first transmission line. The connector includes: a switch configured to select whether to electrically connect the first transmission line and the second transmission line to each other in a state where the connector and another connector having the second transmission line are connected to each other; an authentication unit configured to perform authentication processing of authenticating a pairing apparatus connected to a connector; and a control unit configured to control the switch based on a result of the verification process.
(12) A connector according to the present disclosure is a connector connectable with a counterpart connector including a first transmission line. The connector includes: a processing unit configured to create information on authentication and transmit the information to the counterpart connector; and a second transmission line. The mating connector includes: a switch configured to select whether to electrically connect the first transmission line and the second transmission line to each other in a state where the counterpart connector is connected to the other connector; an authentication unit configured to perform an authentication process of authenticating the other connector based on the information; and a control unit configured to control the switch based on a result of the verification process.
(13) The connecting method according to the present disclosure is a connecting method employed in a connector system provided with a first connector including a first transmission line and a second connector including a second transmission line. The first connector further includes a switch configured to select whether to electrically connect the first transmission line and the second transmission line to each other in a state where the first connector and the second connector are connected to each other. The method comprises the following steps: the second connector performs a step of an information transmission process of creating information on authentication and transmitting the information to the first connector; the first connector performs a step of authenticating a process of authenticating the second connector based on information received from the second connector; and a step in which the first connector controls the switch based on the result of the verification process.
An aspect of the present disclosure can be realized not only as a connector system including the feature processing unit as described above, but also as a program for causing a computer to execute the above-described steps. Further, an aspect of the present disclosure may be implemented as a semiconductor integrated circuit implementing part or all of the connector system.
An aspect of the present disclosure can be realized not only as a connector including the feature processing unit as described above but also as a connecting method including the steps of the feature processing as described above, or as a program causing a computer to execute the steps. Further, an aspect of the present disclosure may be implemented as a semiconductor integrated circuit that implements part or all of the connector.
Drawings
Fig. 1 shows an application example of a connector system according to a first embodiment of the present disclosure.
Fig. 2 shows a configuration of a connector system according to a first embodiment of the present disclosure.
Fig. 3 shows a sequence diagram defining an operation process of the connector system according to the first embodiment of the present disclosure.
Fig. 4 shows an application example of a connector system according to a second embodiment of the present disclosure.
Fig. 5 shows a configuration of a connector system according to a second embodiment of the present disclosure.
Fig. 6 shows a sequence diagram defining an operation process of the connector system according to the second embodiment of the present disclosure.
Fig. 7 shows an application example of a connector system according to a third embodiment of the present disclosure.
Fig. 8 shows a configuration of a connector system according to a third embodiment of the present disclosure.
Fig. 9 shows an application example of a connector system according to a fourth embodiment of the present disclosure.
Fig. 10 shows a configuration of a connector system according to a fourth embodiment of the present disclosure.
Fig. 11 shows a sequence chart defining an operation process of the connector system according to the fourth embodiment of the present disclosure.
Detailed Description
[ problem to be solved by the present disclosure ]
For example, when devices are connected to each other via a connector disclosed in patent document 1, the devices can communicate with each other. However, it is difficult to ensure sufficient security of communication between devices.
The present disclosure is made to solve the above problems, and an object of the present disclosure is to provide a connector system, a connector, and a connecting method capable of more appropriately controlling electrical connection between devices.
[ Effect of the present disclosure ]
According to the present disclosure, the electrical connection between the devices can be more appropriately controlled.
[ description of embodiments of the present disclosure ]
First, a description will be given by listing the contents of the embodiments of the present disclosure.
(1) A connector system according to the present disclosure is provided with a first connector including a first transmission line and a second connector including a second transmission line. The second connector includes a processing unit configured to perform an information transmission process of creating information on authentication and transmitting the information to the first connector. The first connector includes: a switch configured to select whether to electrically connect the first transmission line and the second transmission line to each other in a state where the first connector and the second connector are connected to each other; an authentication unit configured to perform an authentication process of authenticating the second connector based on information received from the second connector; and a control unit configured to control the switch based on a result of the verification process.
In the above configuration, the electrical connection between the first transmission line and the second transmission line is switched based on the result of the verification process performed by the first connector. Therefore, when transmission of a communication signal is performed through the first transmission line and the second transmission line, communication with an unintended device is avoided, thereby ensuring security. In addition, when power transmission is performed through the first transmission line and the second transmission line, power is prevented from being transmitted to an unintended device. Therefore, the electrical connection between the devices can be controlled more appropriately.
(2) Preferably, the first connector and the second connector respectively include additional transmission lines electrically connected to each other in a state where the first connector and the second connector are connected to each other, without a switch interposed between the first connector and the second connector.
In this configuration, since the connector system is provided with a transmission line for ensuring safety and a transmission line which is not required to ensure safety, a connection mode between various devices can be provided.
(3) Preferably, power is supplied from the second connector with respect to the operation of the first connector.
In this configuration, even when the first connector does not include a power source, the first connector can perform an operation such as authentication while being supplied with power from the second connector.
(4) Preferably, the authentication unit starts the authentication process when the first connector and the second connector are connected to each other.
In this configuration, since the first connector actively starts the authentication process, the second connector is enabled to perform the information transmission process earlier.
(5) Preferably, the processing unit starts the information transmission process after receiving a request for information from the first connector.
In this configuration, for example, even when a connection with the first connector is not detected in the second connector, the first connector can perform authentication processing by causing the second connector to transmit information on authentication.
(6) Preferably, the authentication unit performs the authentication process periodically or aperiodically. After turning on the switch based on the result of the verification process, the control unit determines whether to turn off the switch based on the result of the new verification process.
In this configuration, for example, after the authentication process for the second connector is successful, disconnection of the second connector from the first connector can be detected by a new authentication process. Therefore, the switch can be controlled according to the change of the connection state.
(7) Preferably, the switch is in an off state in a state where the first connector and the second connector are not connected to each other. When the authentication unit does not receive the information for a predetermined period of time or longer, the authentication unit notifies the control unit of authentication failure. When the control unit is notified of the verification failure by the verification unit, the control unit maintains the switch in an off state.
In this configuration, for example, communication between the first connector and a device that has not transmitted information on authentication for a predetermined period of time or longer from the timing at which the device has been connected to the first connector can be avoided, thereby more reliably ensuring security.
For example, communication between the first connector and a device that has not transmitted information on a new authentication for a predetermined period of time or longer from the timing at which the device has transmitted previous information on authentication can be avoided, thereby more reliably ensuring security.
(8) Preferably, in the authentication process, the authentication unit receives information on the authentication from the processing unit through the wiring.
In this configuration, even when a plurality of connectors exist in the vicinity, it is possible to avoid unintended connection and to avoid correct communication from being prohibited. In addition, even when there are a plurality of connectors in the vicinity area that employ the same connection method as that employed between the first connector and the second connector, appropriate connection can be performed.
Even when the first connector and the second connector are disposed in an environment in which they are likely to be affected by noise, the influence of noise can be reduced.
(9) Preferably, the first connector and the second connector are mounted on a vehicle.
In this configuration, even when a plurality of connectors are present in the adjacent area, the first connector and the second connector can operate normally. In addition, in an environment where a plurality of devices are present and noise is large, the influence of noise can be reduced.
(10) A connector according to an embodiment of the present disclosure is a connector including a first transmission line. The connector includes: a switch configured to select whether to electrically connect the first transmission line and the second transmission line to each other in a state where the connector and another connector having the second transmission line are connected to each other; an authentication unit configured to perform authentication processing of authenticating a pairing apparatus connected to a connector; and a control unit configured to control the switch based on a result of the verification process.
In this configuration, the electrical connection between the first transmission line and the second transmission line is switched based on the result of the verification process performed by the first connector. Therefore, when transmission of a communication signal is performed through the first transmission line and the second transmission line, communication with an unintended device is avoided, thereby ensuring security. In addition, when power transmission is performed through the first transmission line and the second transmission line, power is prevented from being transmitted to an unintended device. Therefore, the electrical connection between the devices can be controlled more appropriately.
(11) Preferably, the connector is mounted on a vehicle.
In this configuration, even when a plurality of connectors exist in the vicinity, it is possible to avoid unintended connection and to avoid correct communication from being prohibited. In addition, even when there are a plurality of connectors in the vicinity area that employ the same connection method as that employed between the first connector and the second connector, appropriate connection can be performed.
In an environment where a plurality of devices are present and noise is large, the electrical connection between the devices can be controlled more appropriately.
(12) A connector according to an embodiment of the present disclosure is a connector connectable to a counterpart connector including a first transmission line. The connector includes: a processing unit configured to create information on authentication and transmit the information to a counterpart connector; and a second transmission line. The mating connector includes: a switch configured to select whether to electrically connect the first transmission line and the second transmission line to each other in a state where the counterpart connector is connected to the other connector; an authentication unit configured to perform an authentication process of authenticating the other connector based on the information; and a control unit configured to control the switch based on a result of the verification process.
In this configuration, in the counterpart connector, the authentication process for the other connector may be performed by using the information on authentication transmitted from the other connector, and the electrical connection between the first transmission line and the second transmission line may be switched based on the result of the authentication process. Therefore, when transmission of a communication signal is performed through the first transmission line and the second transmission line, communication with an unintended device is avoided, thereby ensuring security. In addition, when power transmission is performed through the first transmission line and the second transmission line, power is prevented from being transmitted to an unintended device. Therefore, the electrical connection between the devices can be controlled more appropriately.
(13) A connecting method according to an embodiment of the present disclosure is a connecting method employed in a connector system provided with a first connector including a first transmission line and a second connector including a second transmission line. The first connector further includes a switch configured to select whether to electrically connect the first transmission line and the second transmission line to each other in a state where the first connector and the second connector are connected to each other. The method comprises the following steps: the second connector performs a step of an information transmission process of creating information on authentication and transmitting the information to the first connector; the first connector performs a step of authenticating a process of authenticating the second connector based on information received from the second connector; and a step in which the first connector controls the switch based on the result of the verification process.
In the above method, the electrical connection between the first transmission line and the second transmission line is switched based on the result of the verification process performed by the first connector. Therefore, when transmission of a communication signal is performed through the first transmission line and the second transmission line, communication with an unintended device is avoided, thereby ensuring security. In addition, when power transmission is performed through the first transmission line and the second transmission line, power is prevented from being transmitted to an unintended device. Therefore, the electrical connection between the devices can be controlled more appropriately.
Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. In the drawings, the same or corresponding portions are denoted by the same reference numerals, and the description thereof is not repeated. At least some portions of the embodiments described below may be combined as desired.
< first embodiment >
[ configuration and basic operation ]
(connector system)
Fig. 1 shows an application example of a connector system according to a first embodiment of the present disclosure.
Referring to fig. 1, a connector system 201 includes a first connector (mating connector) 101 and a second connector 102. For example, the first connector 101 and the second connector 102 are mounted on a vehicle.
In more detail, the first connector 101 is connected to a wire harness 1 provided in a vehicle, for example. The second connector 102 is connected to the in-vehicle apparatus 2 such as a sensor or an actuator.
While being electrically connected to the wire harness 1, the in-vehicle device 2 transmits ECU (electronic control unit) information such as sensor information or operation information to the wire harness 1 via the second connector 102 and the first connector 101. While being electrically connected to the wire harness 1, the in-vehicle device 2 may receive ECU information such as vehicle information or operation instruction information from the wire harness 1.
The first connector 101 and the second connector 102 are preferably connected to a common Ground (GND).
Fig. 2 shows a configuration of a connector system according to a first embodiment of the present disclosure.
Referring to fig. 2, for example, the first connector 101 is a receptacle, and the second connector 102 is a plug.
The first connector 101 includes the authentication unit 11, the control unit 12, the switch 13, the power line PL11, the communication line TL12, the communication line (first transmission line) TL13, and the communication line TL 14. For example, the authentication unit 11, the control unit 12, and the switch 13 are mounted on the bottom plate BP 1.
The second connector 102 includes the processing unit 14, the power line PL21, the communication line TL22, the communication line (second transmission line) TL23, and the communication line TL 24. The processing unit 14 is mounted on the floor panel BP2, for example, and receives electric power supplied from a power supply PS in the in-vehicle apparatus 2.
The second connector 102 may include its own power supply instead of receiving the electric power supplied from the power supply PS in the in-vehicle apparatus 2.
For example, the second connector 102 is attachable/detachable with respect to the first connector 101. In the "connected state" in which the first connector 101 and the second connector 102 are connected to each other, the power line PL11 is connected to the power line PL21, the communication line TL12 is connected to the communication line TL22, the communication line TL13 is connected to the communication line TL23 via the switch 13, and the communication line TL14 is connected to the communication line TL 24.
The "connected state" means a state in which the first connector 101 and the second connector 102 are mechanically connected to each other, for example, a state in which the first connector 101 and the second connector 102 are mated with each other.
When the connection state occurs, power regarding the operation of the first connector 101 is supplied from the second connector 102. For example, the authentication unit 11, the control unit 12, and the switch 13 start operating upon receiving power supplied from the power supply PS in the vehicle-mounted device 2 or from a power supply (not shown) in the second connector 102 via the power line PL21 and the power line PL 11. When the first connector 101 is not connected to the second connector 102 and when the first connector 101 starts to operate, the switch 13 is in its off state.
At least one of the authentication unit 11, the control unit 12, and the switch 13 may be operated with power supplied from a source other than the second connector 102.
The authentication unit 11 in the first connector 101 performs authentication processing of authenticating a partner device connected to the first connector 101, and outputs result information a1 indicating the authentication result to the control unit 12. Subsequently, the authentication process performed by the authentication unit 11 will be described in detail.
Upon receiving the result information a1 output from the authentication unit 11, the control unit 12 controls the switch 13 based on the result information a 1.
In the connection state, the switch 13 selects whether to electrically connect the communication line TL13 to the communication line TL23 according to the control of the control unit 12.
In more detail, when the result information a1 received from the authentication unit 11 indicates that authentication of the counterpart device connected to the first connector 101 is successful, in other words, when the counterpart device connected to the first connector 101 is the second connector 102, the control unit 12 switches the switch 13 to the on state. Therefore, the communication line TL13 is electrically connected to the communication line TL23, whereby the in-vehicle device 2 becomes able to exchange ECU information with the wire harness 1 via the communication line TL23 and the communication line TL 13.
Meanwhile, when the result information a1 received from the authentication unit 11 indicates that authentication of the counterpart device connected to the first connector 101 has failed, in other words, when the counterpart device connected to the first connector 101 is not the second connector 102, the control unit 12 maintains the switch 13 in the off state. Therefore, communication between the wire harness 1 and an unintended device is avoided, thereby improving safety.
For example, when the second connector 102 is disconnected from the first connector 101, the first connector 101 is not supplied with power, and the switch 13 is switched from the on state to the off state.
The communication line TL13, the communication line TL23, the communication line TL14, and the communication line TL24 may be communication lines for transmitting digital signals, communication lines for transmitting analog signals, or power lines for transmitting any electric power.
(details of the verification processing)
For example, the verification unit 11 in the first connector 101 performs authentication processing using a digital signature as verification processing.
In more detail, when the processing unit 14 in the second connector 102 has detected, for example, connection of the first connector 101 and the second connector 102, the processing unit 14 executes information transmission processing (hereinafter, also referred to as "authentication information") of transmitting information on authentication.
Specifically, the processing unit 14 creates the public key PK and the private key SK as the authentication information. The processing unit 14 transmits the created public key PK to the first connector 101 via the communication line TL22 and the communication line TL12 to request the random number R.
Processing unit 14 need not be configured to create public key PK and private key SK. For example, the processing unit 14 may hold at least one of the public key PK and the private key SK in advance.
The authentication unit 11 in the first connector 101 receives the public key PK transmitted from the second connector 102 via the communication line TL22 and the communication line TL12, and creates the random number R. Then, the authentication unit 11 transmits the created random number R to the second connector 102 via the communication line TL12 and the communication line TL 22.
The processing unit 14 in the second connector 102 receives the random number R transmitted from the first connector 101 via the communication line TL12 and the communication line TL22, and creates an encrypted digital signature S as authentication information by using the created private key SK and the received random number R. Then, the processing unit 14 transmits the created digital signature S to the first connector 101 via the communication line TL22 and the communication line TL 12.
The authentication unit 11 receives the digital signature S transmitted from the second connector 102 via the communication line TL22 and the communication line TL12, and decrypts the digital signature S by using the public key PK. Then, the verification unit 11 performs verification processing on the second connector 102 by using the decrypted digital signature S and the random number R, and outputs result information a1 indicating the result of the verification processing to the control unit 12.
The authentication unit 11 may employ not only the above-mentioned method but also an elliptic curve cryptography such as ECDSA (elliptic curve digital signature algorithm), RSA (Rivest ShamirAdleman cryptosystem), DSA (digital signature algorithm), or authentication processing and password using ID (identification).
When the authentication process is performed using the elliptic curve cryptography, the authentication unit 11 preferably creates a random number R having a bit length of not less than 256 bits.
The authentication unit 11 may be configured to start an authentication process when the first connector 101 and the second connector 102 are connected to each other. For example, when a connection state occurs and the authentication unit 11 starts operating upon receiving power supplied from the second connector 102, the authentication unit 11 transmits request information requesting transmission of authentication information to the second connector 102 via the communication line TL12 and the communication line TL22, thereby starting authentication processing.
In this case, the processing unit 14 in the second connector 102 receives the request information from the first connector 101, and starts the information transmission process.
If the authentication unit 11 cannot receive the authentication information transmitted from the second connector 102 for a predetermined period of time or longer from the timing at which the connection state has occurred (i.e., the timing at which the authentication unit 11 starts operating), the authentication unit 11 may output result information a1 indicating that the authentication has failed to the control unit 12. After receiving result information a1 indicating that the verification failed from the verification unit 11, the control unit 12 holds the switch 13 in the off state.
A power supply may be provided on the first connector 101 side. That is, the first connector 101 may be configured to have a power source, or receive power supplied from a power source provided on the wire harness 1 side. In this case, the second connector 102 receives the electric power supplied from the power source in the in-vehicle apparatus 2 to which the second connector 102 is connected or the electric power supplied from the power source on the first connector 101 side.
The authentication unit 11 in the first connector 101 may perform the authentication process periodically or non-periodically.
Specifically, the processing unit 14 in the second connector 102 transmits, for example, the created digital signature S to the first connector 101 via the communication line TL22 and the communication line TL12 at predetermined time intervals.
The authentication unit 11 in the first connector 101 performs authentication processing periodically or non-periodically. If the verification unit 11 cannot receive a new digital signature S within a predetermined period of time from the timing of receiving the last digital signature S, or if the verification of the transmission source of the newly received digital signature S fails, the verification unit 11 outputs result information a1 indicating the failure of the verification to the control unit 12.
Based on the result of the new authentication process performed by the authentication unit 11, the control unit 12 determines whether to turn off the switch 13. That is, upon receiving result information a1 indicating that the verification failed from the verification unit 11, the control unit 12 determines to turn off the switch 13, switching the switch 13 from the on state to the off state.
According to the above configuration, the control unit 12 can detect, for example, disconnection of the second connector 102 from the first connector 101 or connection of a device other than the second connector 102 to the first connector 101, thereby appropriately controlling the switch 13.
The first connector 101 and the second connector 102 may be configured to perform wireless communication, in other words, contactless communication. However, since many devices are installed in a vehicle, the first connector 101 and the second connector 102 are preferably configured to perform transmission/reception of authentication information or the like through wiring in order to reduce the influence of noise.
The first connector 101 and the second connector 102 may not be configured to include the communication line TL14 and the communication line TL24, respectively, the communication line TL14 and the communication line TL24 being electrically connected to each other without the switch 13 interposed therebetween in the connected state.
The first connector 101 and the second connector 102 may be configured to include a plurality of transmission lines via the switch 13 in a connected state.
For example, when each of the first connector 101 and the second connector 102 includes a power supply, the connector system 201 need not include the power line PL11 and the power line PL 21. For example, when the first connector 101 and the second connector 102 perform wireless communication, the connector system 201 need not include the communication line TL12 and the communication line TL 22.
When the first connector 101 and the second connector 102 are not connected to each other, the switch 13 may be in a conductive state. In this case, for example, when the first connector 101 and the second connector 102 are connected to each other, the control unit 12 switches the switch 13 from the on state to the off state.
The first connector 101 and the second connector 102 may be provided in an apparatus other than a vehicle. For example, instead of being connected to the in-vehicle apparatus 2, the second connector 102 may be connected to an apparatus such as a terminal for performing equipment maintenance or the like.
< procedure flow >
Each device in the connector system 201 includes a computer, and an arithmetic processing unit such as a CPU in the computer reads out a program including a part or all of the steps in the following sequence diagram from a memory (not shown), and executes the program. The programs of the plurality of devices may each be installed from the outside. The programs of the plurality of devices are each distributed in a state of being stored in a storage medium.
Fig. 3 shows a sequence diagram defining an operation process of the connector system according to the first embodiment of the present disclosure.
Referring to fig. 2 and 3, first, for example, the second connector 102 is connected to the first connector 101 (step S11).
Next, for example, the first connector 101 receives the electric power supplied from the power supply PS in the in-vehicle apparatus 2 to which the second connector 102 is connected via the second connector 102 (step S12).
Next, the processing unit 14 in the second connector 102 executes information transmission processing of creating the public key PK and the private key SK and transmitting the created public key PK to the first connector 101 via the communication line TL22 and the communication line TL12 (step S13).
Next, the authentication unit 11 in the first connector 101 receives the public key PK transmitted from the second connector 102, and creates a random number R (step S14).
Next, the authentication unit 11 transmits the created random number R to the second connector 102 via the communication line TL12 and the communication line TL22 (step S15).
Next, the processing unit 14 in the second connector 102 receives the random number R from the first connector 101 via the communication line TL12 and the communication line TL22, and creates an encrypted digital signature S by using the created private key SK and the received random number R (step S16).
Next, the processing unit 14 executes information transmission processing of transmitting the created digital signature S to the first connector 101 via the communication line TL22 and the communication line TL12 (step S17).
Next, the authentication unit 11 in the first connector 101 receives the digital signature S from the second connector 102 via the communication line TL22 and the communication line TL12, and decrypts the digital signature S by using the public key PK. Then, the verification unit 11 performs verification processing on the second connector 102 by using the decrypted digital signature S and the random number R, and outputs result information a1 indicating the result of the verification processing to the control unit 12 (step S18).
When the result information a1 received from the authentication unit 11 indicates that authentication of the counterpart device (i.e., the second connector 102) connected to the first connector 101 is successful (yes in step S19), the control unit 12 switches the switch 13 to the on state (step S20).
Next, the first connector 101 and the second connector 102 relay the ECU information to be transmitted from the in-vehicle device 2 to the wire harness 1 (step S21).
When the second connector 102 is disconnected from the first connector 101 (step S22), the supply of electric power to the first connector 101 is stopped, and the switch 13 is switched to the off state (steps S23 and S24).
Meanwhile, when the result information a1 received from the authentication unit 11 indicates that authentication of the counterpart device connected to the first connector 101 has failed (no in step S19), the control unit 12 maintains the switch 13 in the off state (step S24).
When the second connector 102 is disconnected from the first connector 101 (step S22), the switch 13 does not have to be switched to the off state. In this case, upon receiving the power supplied from the second connector 102 (step S12), the control unit 12 switches the switch 13 from the on state to the off state.
After the ECU information is relayed through the first connector 101 and the second connector 102 (step S21), the disconnection of the second connector 102 from the first connector 101 does not have to be performed (step S22), and may be performed at any timing from step S11 or thereafter.
If the switch 13 is in the off state at the timing at which the second connector 102 is disconnected, that is, if the second connector 102 is disconnected before step S20, the switch 13 is kept in the off state. On the other hand, if the switch 13 is in the on state at the timing at which the second connector 102 is opened, that is, if the second connector 102 is opened in step S20 or a step thereafter, the switch 13 is switched from the on state to the off state (step S23).
In the case where devices are connected to each other via the connector disclosed in patent document 1, for example, the devices can communicate with each other. However, it is difficult to ensure sufficient security of communication between devices.
In order to ensure safety between devices, for example, a method of physically covering a connection portion of a device with a cover having a key lock is conceivable. However, it is troublesome to perform locking/unlocking whenever the device is connected/disconnected.
A method of transmitting a signal encrypted in a corresponding apparatus is also conceivable. However, it is difficult to ensure security against a communication signal transmitted from a device without an encryption function. In addition, if the communication signal transmitted from the device is a weak analog signal, the communication signal cannot be easily encrypted.
Meanwhile, in the connector system 201 according to the first embodiment of the present disclosure, the first connector 101 includes the communication line TL 13. Second connector 102 includes communication line TL 23. The processing unit 14 in the second connector 102 performs information transmission processing of creating authentication information and transmitting the authentication information to the first connector 101. In a state where the first connector 101 and the second connector 102 are connected to each other, the switch 13 in the first connector 101 selects whether or not to electrically connect the communication line TL13 and the communication line TL23 to each other. The authentication unit 11 in the first connector 101 performs authentication processing of authenticating the second connector 102 based on authentication information received from the second connector 102. Then, the control unit 12 in the first connector 101 controls the switch 13 based on the result of the authentication process performed by the authentication unit 11.
As described above, since the electrical connection between the communication line TL13 and the communication line TL23 is switched based on the result of the authentication process performed by the first connector 101, communication between the wire harness 1 and an unintended device can be avoided, whereby safety can be ensured.
Therefore, in the connector system 201 according to the first embodiment of the present disclosure, the electrical connection between the devices can be more appropriately controlled.
In the connector system 201 according to the first embodiment of the present disclosure, the first connector 101 and the second connector 102 include additional transmission lines electrically connected to each other in a state where the first connector 101 and the second connector 102 are connected to each other without the switch 13 interposed therebetween.
In this configuration, since the connector system 201 is provided with a transmission line for ensuring safety and a transmission line which is not required to ensure safety, a connection mode between various devices can be provided.
In the connector system 201 according to the first embodiment of the present disclosure, power regarding the operation of the first connector 101 is supplied from the second connector 102.
In this configuration, even when the first connector 101 does not include a power source, the first connector 101 can perform an operation such as authentication while being supplied with power from the second connector 102.
In the connector system 201 according to the first embodiment of the present disclosure, the authentication unit 11 starts the authentication process immediately after the first connector 101 and the second connector 102 are connected to each other (i.e., immediately after power is supplied from the second connector 102).
Since the first connector 101 actively starts the authentication process, the second connector 102 is enabled to perform the information transmission process earlier.
In the connector system 201 according to the first embodiment of the present disclosure, the processing unit 14 starts the information transmission process upon receiving a request for authentication information from the first connector 101.
In this configuration, for example, even when a connection with the first connector 101 is not detected in the second connector, the first connector 101 can perform authentication processing by causing the second connector 102 to transmit authentication information.
In the connector system 201 according to the first embodiment of the present disclosure, the authentication unit 11 periodically or non-periodically performs the authentication process. Then, the control unit 12 turns on the switch 13 based on the result of the verification process performed by the verification unit 11, and thereafter, determines whether to turn off the switch 13 based on the result of the new verification process.
In this configuration, for example, after the authentication process for the second connector 102 is successful, disconnection of the second connector 102 from the first connector 101 can be detected by a new authentication process. Therefore, the switch 13 can be controlled according to the change of the connection state.
In the connector system 201 according to the first embodiment of the present disclosure, when the first connector 101 and the second connector 102 are not connected to each other, the switch 13 is in the off state. When the authentication information is not received for a predetermined period of time or longer, the authentication unit 11 notifies the control unit 12 of authentication failure. When the control unit 12 is notified of the authentication failure by the authentication unit 11, the control unit 12 keeps the switch 13 in the off state.
In this configuration, for example, communication between the first connector 101 and a device that does not transmit authentication information for a predetermined period of time or longer from the timing at which the device has been connected to the first connector 101 can be avoided, thereby more reliably ensuring security.
Further, for example, communication between the first connector 101 and a device that does not transmit a new digital signature S for a predetermined period of time or longer from the timing at which the device has transmitted a previous digital signature S can be avoided, thereby more reliably ensuring security.
In the connector system 201 according to the first embodiment of the present disclosure, the authentication unit 11 receives authentication information from the processing unit 14 through the wiring in the authentication process.
In this configuration, even when a plurality of connectors exist in the vicinity, it is possible to avoid unintended connection and to avoid correct communication from being prohibited. In addition, even when there are a plurality of connectors in the vicinity area that employ the same connection method as that employed between the first connector 101 and the second connector 102, appropriate connection can be performed.
Even when the first connector 101 and the second connector 102 are in an environment in which they are likely to be affected by noise, the influence of noise can be reduced.
In the connector system 201 according to the first embodiment of the present disclosure, the first connector 101 and the second connector 102 are mounted on a vehicle.
In this configuration, even when a plurality of connectors are present in the adjacent area, the first connector 101 and the second connector 102 can operate normally. In addition, in an environment where a plurality of devices are present and noise is large, the influence of noise can be reduced.
In the connector system 201 according to the first embodiment of the present disclosure, in a state where the first connector 101 and the second connector 102 are connected to each other, the switch 13 selects whether to electrically connect the communication line TL13 in the first connector 101 to the communication line TL23 in the second connector 102. The authentication unit 11 performs authentication processing of authenticating a pairing device connected to the first connector 101. Then, the control unit 12 controls the switch 13 based on the result of the authentication process performed by the authentication unit 11.
Since the electrical connection between the communication line TL13 and the communication line TL23 is switched based on the result of the authentication process performed by the first connector 101, communication between the wire harness 1 and an unintended device is avoided, thereby ensuring safety.
Therefore, in the first connector 101 according to the first embodiment of the present disclosure, the electrical connection between the devices can be more appropriately controlled.
The first connector 101 according to the first embodiment of the present disclosure is mounted on a vehicle.
In this configuration, even when a plurality of connectors exist in the vicinity, it is possible to avoid unintended connection and to avoid correct communication from being prohibited. In addition, even when there are a plurality of connectors in the vicinity area that employ the same connection method as that employed between the first connector 101 and the second connector 102, appropriate connection can be performed.
In an environment where a plurality of devices are present and noise is large, the electrical connection between the devices can be controlled more appropriately.
The second connector 102 according to the first embodiment of the present disclosure is a connector connectable with the first connector 101 including the communication line TL 13. The second connector 102 includes: a processing unit 14 configured to create authentication information and transmit the authentication information to the first connector 101; and communication line TL 23. In a state where the second connector 102 is connected to the first connector 101, the switch 13 in the first connector 101 selects whether or not to electrically connect the communication line TL13 and the communication line TL23 to each other. The authentication unit 11 in the first connector 101 performs authentication processing for authenticating the second connector 102 based on the authentication information. The control unit 12 in the first connector 101 controls the switch 13 based on the result of the authentication process.
In the above configuration, in the first connector 101, the authentication processing for the second connector 102 may be performed by using the authentication information transmitted from the second connector 102, and the electrical connection between the transmission line TL13 and the transmission line TL23 may be switched based on the result of the authentication processing. Therefore, communication between the wire harness 1 and an unintended device can be avoided, whereby safety can be ensured.
Therefore, in the second connector 102 according to the first embodiment of the present disclosure, the electrical connection between the devices can be more appropriately controlled.
In the connection method according to the first embodiment of the present disclosure, the processing unit 14 in the second connector 102 performs information transmission processing of creating authentication information and transmitting the authentication information to the first connector 101. Next, the authentication unit 11 in the first connector 101 performs an authentication process of authenticating the second connector 102 based on the authentication information received from the second connector 102. Next, the control unit 12 in the first connector 101 controls the switch 13 based on the result of the verification process.
Since the electrical connection between the communication line TL13 and the communication line TL23 is switched based on the result of the authentication process performed by the first connector 101, communication between the wire harness 1 and an unintended device is avoided, whereby safety can be ensured.
Therefore, in the connection method according to the first embodiment of the present disclosure, the electrical connection between the devices can be more appropriately controlled.
Hereinafter, other embodiments of the present disclosure will be described with reference to the accompanying drawings. In the drawings, the same or corresponding portions are denoted by the same reference characters, and the description thereof will not be repeated.
< second embodiment >
In the connector system 201 according to the first embodiment of the present disclosure described above, the first connector 101 performs authentication processing on a counterpart device connected thereto. In contrast to the first embodiment, in the connector system 202 according to the second embodiment of the present disclosure, the first connector 111 and the second connector 112 mutually perform the authentication process of the counterpart connector.
Fig. 4 shows an application example of a connector system according to a second embodiment of the present disclosure.
Referring to fig. 4, in the connector system 202, the first connector 111 and the second connector 112 are connected to, for example, communication devices that exchange signals with each other and are installed in apparatuses other than vehicles. For example, the first connector 111 is connected to the communication apparatus 3, and the second connector 112 is connected to the communication apparatus 4.
The communication device 3 and the communication device 4 exchange communication signals via the second connector 112 and the first connector 111 while being electrically connected to each other.
Fig. 5 shows a configuration of a connector system according to a second embodiment of the present disclosure.
Referring to fig. 5, the first connector 111 includes a verification unit 31, a control unit 32, a switch 33, a processing unit 34, a power line PL31, a communication line TL32, a communication line TL33, and a communication line (first transmission line) TL 34. For example, the authentication unit 31, the control unit 32, the switch 33, and the processing unit 34 are mounted on the bottom plate BP 3. Except for what is described below, the structures and operations of the authentication unit 31, the control unit 32, and the switch 33 are the same as those of the authentication unit 11, the control unit 12, and the switch 13 shown in fig. 2.
The second connector 112 includes the processing unit 35, the authentication unit 36, the control unit 37, the switch 38, the power line PL41, the communication line TL42, the communication line TL43, and the communication line (second transmission line) TL 44. For example, the processing unit 35, the authentication unit 36, the control unit 37, and the switch 38 are mounted on the bottom plate BP 4. Except for what is described below, the structure and operation of the processing unit 35 are the same as those of the processing unit 14 shown in fig. 2. When the first connector 111 and the second connector 112 are not connected to each other and when the second connector 112 starts to operate, the switch 38 is in its off state.
For example, the second connector 112 is attachable/detachable with respect to the first connector 111. In a connected state where first connector 111 and second connector 112 are connected to each other, the communication line is connected to power line PL21, communication line TL32 is connected to communication line TL42, communication line TL33 is connected to communication line TL43, and communication line TL34 is connected to communication line TL44 via switch 33 and switch 38.
The communication line TL34 and the communication line TL44 may be a communication line for transmitting digital signals, a communication line for transmitting analog signals, or a power line for transmitting any electric power.
For example, the first connector 111 and the second connector 112 mutually perform authentication processing of a counterpart device connected thereto.
In more detail, the authentication unit 36 in the second connector 112 detects the connection/disconnection of the first connector 111 with the second connector 112. Upon detecting that the first connector 111 has been connected, the authentication unit 36 outputs detection information indicating the detection result to the processing unit 35.
Upon receiving the detection information indicating that the first connector 111 has been connected from the authentication unit 36, the processing unit 35 creates authentication information, and transmits the created authentication information to the first connector 111 via the communication line TL43 and the communication line TL 33.
Like the authentication unit 11 shown in fig. 2, the authentication unit 31 in the first connector 111 receives the authentication information transmitted from the second connector 112 via the communication line TL43 and the communication line TL33, and performs an authentication process for authenticating a paired device connected to the first connector 111 based on the received authentication information, and outputs result information a1 indicating the authentication result to the control unit 32.
The authentication unit 31 in the first connector 111 detects, for example, connection/disconnection of the second connector 112 to/from the first connector 111. Upon detecting that the second connector 112 has been connected, the authentication unit 31 outputs detection information indicating the detection result to the processing unit 34.
Upon receiving the detection information indicating that the second connector 112 has been connected from the authentication unit 31, the processing unit 34 creates authentication information and transmits the created authentication information to the second connector 112 via the communication line TL43 and the communication line TL 33.
The authentication unit 36 in the second connector 112 receives the authentication information transmitted from the first connector 111 via the communication line TL32 and the communication line TL42, and performs authentication processing on the first connector 111 by using the authentication information. Then, the authentication unit 36 outputs result information a2 indicating the result of the authentication process to the control unit 37.
The authentication information (i.e., the public key PK, the private key SK, and the digital signature S) created by the processing unit 34 and the authentication processing performed by the authentication unit 36 are the same as the authentication information creation by the processing unit 34 and the authentication processing performed by the authentication unit 11 shown in fig. 2, respectively.
The control unit 32 in the first connector 111 receives the result information a1 output from the authentication unit 31. When the result information a1 indicates that the verification of the counterpart device connected to the first connector 111 is successful, the control unit 32 switches the switch 33 to the on state.
The control unit 37 in the second connector 112 receives the result information a2 output from the authentication unit 36. When the result information a2 indicates that the verification of the counterpart device connected to the second connector 112 is successful, the control unit 37 switches the switch 38 to the on state.
Therefore, the communication line TL34 and the communication line TL44 are electrically connected to each other. Therefore, the communication apparatus 3 and the communication apparatus 4 become able to exchange communication signals with each other via the communication line TL34 and the communication line TL 44.
Meanwhile, when the authentication unit 31 in the first connector 111 detects that the second connector 112 has been disconnected from the first connector 111, the authentication unit 31 outputs detection information indicating the detection result to the control unit 32. Upon receiving the detection information indicating that the second connector 112 is disconnected from the verification unit 31, the control unit 32 switches the switch 33 from the on state to the off state.
Meanwhile, when the authentication unit 36 in the second connector 112 detects that the first connector 111 has been disconnected from the second connector 112, the authentication unit 36 outputs detection information indicating the detection result to the control unit 37. Upon receiving the detection information indicating that the first connector 111 is disconnected from the verification unit 36, the control unit 37 switches the switch 38 from the on state to the off state.
Since the first connector 111 and the second connector 112 are configured to mutually perform authentication processing, higher security between the communication apparatus 3 and the communication apparatus 4 can be ensured.
The authentication unit 31 may be configured to perform the authentication process periodically or non-periodically. In this case, the verification unit 31 may detect disconnection of the second connector 112 by checking whether a new digital signature S has been received within a predetermined period of time from the timing of receiving the previous digital signature S. When a new digital signature S is not received within a predetermined period of time from the timing at which the previous digital signature S is received, the verification unit 31 outputs result information a1 indicating that the verification failed to the control unit 32.
The authentication unit 36 may be configured to perform the authentication process periodically or non-periodically. In this case, the verification unit 36 may detect disconnection of the first connector 111 by checking whether a new digital signature S has been received within a predetermined period of time from the timing of receiving the previous digital signature S. When a new digital signature S is not received within a predetermined period of time from the timing at which the previous digital signature S is received, the verification unit 36 outputs result information a2 indicating that the verification failed to the control unit 37.
The first connector 111 and the second connector 112 may be mounted on a vehicle.
< procedure flow >
Fig. 6 shows a sequence diagram defining an operation process of the connector system according to the second embodiment of the present disclosure.
Referring to fig. 5 and 6, first, for example, the second connector 112 is connected to the first connector 111 (step S31).
Next, the processing unit 35 in the second connector 112 executes information transmission processing of creating the public key PK and the private key SK and transmitting the created public key PK to the first connector 111 via the communication line TL33 and the communication line TL43 (step S32).
Next, the authentication unit 31 in the first connector 111 receives the public key PK transmitted from the second connector 112, and creates a random number R (step S33).
Next, the authentication unit 31 transmits the created random number R to the second connector 112 via the communication line TL33 and the communication line TL43 (step S34).
Next, the processing unit 35 in the second connector 112 receives the random number R from the first connector 111, and creates an encrypted digital signature S by using the created private key SK and the received random number R (step S35).
Next, the processing unit 35 executes information transmission processing of transmitting the created digital signature S to the first connector 111 via the communication line TL43 and the communication line TL33 (step S36).
Next, the verification unit 31 in the first connector 111 receives the digital signature S from the second connector 112, and decrypts the digital signature S by using the public key PK. Then, the verification unit 31 performs verification processing on the second connector 112 by using the decrypted digital signature S and the random number R, and outputs result information a1 indicating the result of the verification processing to the control unit 32 (step S37).
Based on the result information a1, the control unit 32 checks whether the authentication of the second connector 112 is successful (step S38). When the verification of the second connector 112 is successful (yes in step S38), the control unit 32 switches the switch 33 to the on state (step S39).
Next, the processing unit 34 in the first connector 111 executes information transmission processing of creating the public key PK and the private key SK and transmitting the created public key PK to the second connector 112 via the communication line TL32 and the communication line TL42 (step S40).
Next, the authentication unit 36 in the second connector 112 receives the public key PK transmitted from the first connector 111, and creates a random number R (step S41).
Next, the authentication unit 36 transmits the created random number R to the first connector 111 via the communication line TL42 and the communication line TL32 (step S42).
Next, the processing unit 34 in the first connector 111 receives the random number R from the second connector 112, and creates an encrypted digital signature S by using the created private key SK and the received random number R (step S43).
Next, the processing unit 34 executes information transmission processing of transmitting the created digital signature S to the second connector 112 via the communication line TL32 and the communication line TL42 (step S44).
Next, the verification unit 36 in the second connector 112 receives the digital signature S from the first connector 111, and decrypts the digital signature S by using the public key PK. Then, the verification unit 36 performs verification processing on the first connector 111 by using the decrypted digital signature S and the random number R, and outputs result information a2 indicating the result of the verification processing to the control unit 37 (step S45).
Based on the result information a2, the control unit 37 checks whether the authentication of the first connector 111 is successful (step S46). When the verification of the first connector 111 is successful (yes in step S46), the control unit 37 switches the switch 38 to the on state (step S47).
Next, the first connector 111 and the second connector 112 relay the communication signal exchanged between the communication apparatus 3 and the communication apparatus 4 shown in fig. 4 (step S48).
Next, for example, the authentication unit 36 in the second connector 112 detects that the first connector 111 has been disconnected, and outputs detection information indicating the detection result to the control unit 37 (step S49).
Next, the control unit 37 receives the detection information indicating that the second connector 112 is disconnected from the verification unit 36, and switches the switch 38 from the on state to the off state (steps S50 and S51).
Meanwhile, based on the result information a2, when the authentication of the first connector 111 fails, in other words, when the second connector 112 is connected to a device other than the first connector 111 (no in step S46), the control unit 37 in the second connector 112 keeps the switch 38 in the off state (step S51).
Next, the authentication unit 31 in the first connector 111 detects that the second connector 112 has been disconnected, and outputs detection information indicating the detection result to the control unit 32 (step S52).
Next, upon receiving the detection information indicating that the second connector 112 is disconnected from the verification unit 31, the control unit 32 switches the switch 33 from the on state to the off state (steps S53 and S54).
Meanwhile, based on the result information a1, when the authentication of the second connector 112 fails, in other words, when the first connector 111 is connected to a device other than the second connector 112 (no in step S38), the control unit 32 in the first connector 111 keeps the switch 33 in the off state (step S54).
The operations performed by the first connector 111 and the second connector 112 in steps S32 to S39 may be performed after the operations performed by the first connector 111 and the second connector 112 in steps S40 to S47. Alternatively, the operations performed by the first connector 111 and the second connector 112 in steps S32 to S39 may be performed simultaneously with the operations performed by the first connector 111 and the second connector 112 in steps S40 to S47.
After the communication signal is relayed through the first connector 111 and the second connector 112 (step S48), the disconnection between the first connector 111 and the second connector 112 does not have to be performed (steps S49, S52), and may be performed at any timing from step S31 or thereafter.
If the switch 33 is in the off state at the timing when the first connector 111 and the second connector 112 are disconnected from each other, that is, if the first connector 111 and the second connector 112 are disconnected from each other before step S39, the switch 33 is kept in the off state.
If the switch 33 is in the on state and the switch 38 is in the off state at the timing at which the first connector 111 and the second connector 112 are disconnected from each other, that is, if the first connector 111 and the second connector 112 are disconnected from each other after step S39 before step S47, the switch 33 is switched from the on state to the off state while the switch 38 is kept in the off state.
If both the switch 33 and the switch 38 are in the on state at the timing at which the first connector 111 and the second connector 112 are disconnected from each other, that is, if the first connector 111 and the second connector 112 are disconnected from each other in step S47 or thereafter, both the switch 33 and the switch 38 are switched from the on state to the off state (steps S53, S50).
As described above, in the connector system 202 according to the second embodiment of the present disclosure, the first connector 111 includes the communication lines TL32 and TL 33. The second connector 112 includes communication lines TL42 and TL 43. The processing unit 35 in the second connector 112 performs information transmission processing of creating authentication information and transmitting the authentication information to the first connector 111. In a state where the first connector 111 and the second connector 112 are connected to each other, the switch 33 in the first connector 111 selects whether or not to electrically connect the communication line TL34 and the communication line TL44 to each other. The authentication unit 31 in the first connector 111 performs authentication processing of authenticating the second connector 112 based on the authentication information received from the second connector 112. Then, the control unit 32 in the first connector 111 controls the switch 33 based on the result of the authentication process performed by the authentication unit 31.
The processing unit 34 in the first connector 111 performs information transmission processing of creating authentication information and transmitting the authentication information to the second connector 112. In a state where the first connector 111 and the second connector 112 are connected to each other, the switch 38 in the second connector 112 selects whether or not to electrically connect the communication line TL34 and the communication line TL44 to each other. The authentication unit 36 in the second connector 112 performs authentication processing of authenticating the first connector 111 based on the authentication information received from the first connector 111. Then, the control unit 37 in the second connector 112 controls the switch 38 based on the result of the authentication process performed by the authentication unit 36.
As described above, since the electrical connection between the communication line TL34 and the communication line TL44 is switched based on the result of the authentication process performed by the first connector 111 and the result of the authentication process performed by the second connector 112, communication between unintended devices is avoided, whereby security can be ensured.
Therefore, in the connector system 202 according to the second embodiment of the present disclosure, the electrical connection between the devices can be more appropriately controlled.
The communication line TL32 and the communication line TL33 in the first connector 111 may be implemented as a single communication line. Also, the communication line TL42 and the communication line TL43 in the second connector 112 may be implemented as a single communication line.
Since other components and their operations are the same as those of the connector system 201 according to the first embodiment of the present disclosure, a detailed description thereof will not be repeated.
< third embodiment >
In the connector system 203 according to the third embodiment of the present disclosure, the first connector 131 and the second connector 132 relay transmission of electric power via the power line.
Fig. 7 shows an application example of a connector system according to a third embodiment of the present disclosure.
Referring to fig. 7, for example, the first connector 131 is connected to the electrical device 16. For example, the second connector 132 is connected to the receptacle 15. While being electrically connected to the receptacle 15, the electric device 16 receives electric power supplied from the receptacle 15 side via the first connector 131 and the second connector 132.
Fig. 8 shows a configuration of a connector system according to a third embodiment of the present disclosure.
Referring to fig. 8, the first connector 131 includes an authentication unit 71, a control unit 72, a switch 73, a power line PL71, a communication line TL72, a power line (first transmission line) PL73, and a power line PL 74. For example, the authentication unit 71, the control unit 72, and the switch 73 are mounted on the bottom plate BP 7. The structures and operations of the authentication unit 71, the control unit 72, and the switch 73 are the same as those of the authentication unit 11, the control unit 12, and the switch 13 shown in fig. 2.
The second connector 132 includes the processing unit 74, the power line PL81, the communication line TL82, the power line (second transmission line) PL83, and the power line PL 84. For example, the processing unit 74 is mounted on the backplane BP 8. The structure and operation of the processing unit 74 are the same as those of the processing unit 14 shown in fig. 2.
That is, the authentication unit 71 in the first connector 101 performs authentication processing on the second connector 132, and outputs result information a1 indicating the result of the authentication to the control unit 72. The control unit 72 receives the result information a1 output from the verification unit 71, and switches the switch 73 to the on state when the result information a1 indicates that verification of the second connector 132 is successful.
Therefore, power line PL73 and power line PL83 are electrically connected to each other. This enables the electric device 16 to receive the electric power supplied from the outlet 15 side via the power line PL83 and the power line PL 73.
Meanwhile, when the result information a1 received from the authentication unit 71 indicates that authentication of the counterpart device connected to the first connector 131 fails, in other words, when the counterpart device connected to the first connector 131 is a different device from the second connector 132, the control unit 72 maintains the switch 73 in the off state.
The power supplied from the second connector 132 to the first connector 131 may be AC power or DC power. When the power supplied to the first connector 131 is AC power, for example, an AC/DC converter (not shown) included in the first connector 131 converts the AC power into DC power. However, since such an AC/DC converter causes the size of the first connector 131 to increase, the power supplied to the first connector 131 is preferably DC power.
In the connector system 203 according to the third embodiment of the present disclosure, the first connector 131 includes the power line PL 73. The second connector 132 includes a power line PL 83. The processing unit 74 in the second connector 132 performs information transmission processing of creating authentication information and transmitting the authentication information to the first connector 131. In a state where first connector 131 and second connector 132 are connected to each other, switch 73 in first connector 131 selects whether or not to electrically connect power line PL73 and power line PL83 to each other. The authentication unit 71 in the first connector 131 performs authentication processing of authenticating the second connector 132 based on authentication information received from the second connector 132. The control unit 72 in the first connector 131 controls the switch 73 based on the result of the authentication process performed by the authentication unit 71.
As described above, the electrical connection between the first power line PL73 and the power line PL83 is switched based on the result of the verification process performed by the first connector 131. Therefore, when power line PL73 and power line PL83 perform power transmission, power is prevented from being transmitted to an unintended device.
Therefore, in the connector system 203 according to the third embodiment of the present disclosure, the electrical connection between the devices can be more appropriately controlled.
Since other components and their operations are the same as those of the connector system 201 according to the first embodiment of the present disclosure, a detailed description thereof will not be repeated.
< fourth embodiment >
In the connector system 204 according to the fourth embodiment of the present disclosure, the first connector 121 and the second connector 7 are connected to the outlet 5 and the plug 7, respectively, and the transmission of electric power is relayed via the power line.
Fig. 9 shows an application example of a connector system according to a fourth embodiment of the present disclosure.
Referring to fig. 9, in a connector system 204 according to a fourth embodiment of the present disclosure, a first connector 121 is connected to, for example, a receptacle 5. For example, the second connector 122 is connected to the plug 7 of the electrical device 6. While being electrically connected to the receptacle 5, the electric device 6 receives electric power supplied from the receptacle 5 side via the first connector 121 and the second connector 122.
Fig. 10 shows a configuration of a connector system according to a fourth embodiment of the present disclosure.
Referring to fig. 10, the first connector 121 includes an authentication unit 51, a control unit 52, a switch 53, a power line PL51, a communication line TL52, and a power line (first transmission line) PL 53. For example, the authentication unit 51, the control unit 52, and the switch 53 are mounted on the bottom plate BP 5. Except for what is described below, the structures and operations of the authentication unit 51, the control unit 52, and the switch 53 are the same as those of the authentication unit 11, the control unit 12, and the switch 13 shown in fig. 2.
The second connector 122 includes the processing unit 54, a power line PL61, a communication line T62, and a power line (second transmission line) PL 63. For example, the processing unit 54 is mounted on the backplane BP 6. Except for what is described below, the structure and operation of the processing unit 54 is the same as the structure and operation of the processing unit 14 shown in fig. 2.
For example, the second connector 122 is attachable/detachable with respect to the first connector 121. In a connected state in which the first connector 121 and the second connector 122 are connected to each other, the power line PL51 is connected to the power line PL61, the communication line TL52 is connected to the communication line TL62, and the power line PL53 is connected to the power line PL63 via the switch 53.
In the connected state, the processing unit 54 in the second connector 122 operates with the electric power supplied from the outlet 5 side, for example, via the first connector 121. The processing unit 54 creates authentication information and transmits the created authentication information to the first connector 121 via the communication line TL62 and the communication line TL 52.
The authentication unit 51 in the first connector 121 receives the authentication information transmitted from the second connector 122 via the communication line TL62 and the communication line TL52, and performs authentication processing on the second connector 122 based on the received authentication information. Then, the authentication unit 51 outputs result information a1 indicating the authentication result to the control unit 52. The authentication process performed by the authentication unit 51 is the same as the authentication process performed by the authentication unit 11 shown in fig. 2.
The control unit 52 receives the result information a1 output from the verification unit 51, and controls the switch 53 based on the result information a 1.
In more detail, when the result information a1 received from the authentication unit 51 indicates that authentication of the counterpart device connected to the first connector 121 is successful, in other words, when the counterpart device connected to the first connector 121 is the second connector 122, the control unit 52 switches the switch 53 to the on state. Therefore, power line PL53 and power line PL63 are electrically connected to each other. Accordingly, the electric device 6 can receive the electric power supplied from the outlet 5 side via the power line PL53 and the power line PL 63.
Meanwhile, when the result information a1 received from the authentication unit 51 indicates that authentication of the counterpart device connected to the first connector 121 failed, in other words, when the counterpart device connected to the first connector 121 is a different device from the second connector 122, the control unit 52 maintains the switch 53 in the off state. Therefore, it is possible to avoid supplying power from the outlet 5 side to an unintended device.
The authentication unit 51 in the first connector 121 detects the connection/disconnection of the second connector 122 to/from the first connector 121. Upon detecting that the second connector 122 has been disconnected from the first connector 121, the authentication unit 51 outputs detection information indicating the detection result to the control unit 52.
Upon receiving the detection information indicating that the second connector 122 is disconnected from the verification unit 51, the control unit 52 switches the switch 53 from the on state to the off state.
The authentication unit 51 may be configured to periodically or non-periodically perform authentication processing. In this case, the verification unit 51 may detect disconnection of the second connector 122 by checking whether a new digital signature S has been received within a predetermined period of time from the timing of receiving the previous digital signature S. When a new digital signature S is not received within a predetermined period of time from the timing at which the previous digital signature S is received, the verification unit 51 outputs result information a1 indicating that the verification failed to the control unit 52.
< procedure flow >
Fig. 11 shows a sequence chart defining an operation process of the connector system according to the fourth embodiment of the present disclosure.
Referring to fig. 10 and 11, first, for example, the second connector 122 is connected to the first connector 121 (step S61).
Next, the processing unit 54 in the second connector 122 performs an information transmission process of creating the public key PK and the private key SK and transmitting the created public key PK to the first connector 121 via the communication line TL62 and the communication line TL52 (step S62).
Next, the authentication unit 51 in the first connector 121 receives the public key PK from the second connector 122, and creates the random number R (step S63).
Next, the authentication unit 51 transmits the created random number R to the second connector 122 via the communication line TL52 and the communication line TL62 (step S64).
Next, the processing unit 54 in the second connector 122 receives the random number R from the first connector 121, and creates an encrypted digital signature S by using the created private key SK and the received random number R (step S65).
Next, the processing unit 54 executes information transmission processing of transmitting the created digital signature S to the first connector 121 via the communication line TL62 and the communication line TL52 (step S66).
Next, the verification unit 51 in the first connector 121 receives the digital signature S from the second connector 122, and decrypts the digital signature S by using the public key PK. Then, the verification unit 51 performs verification processing on the second connector 122 by using the decrypted digital signature S and the random number R, and outputs result information a1 indicating the result of the verification processing to the control unit 52 (step S67).
Next, when the result information a1 received from the authentication unit 51 indicates that the authentication of the counterpart device connected to the first connector 121 is successful (yes in step S68), the control unit 52 switches the switch 53 to the on state (step S69).
Next, the first connector 121 and the second connector 122 relay the power transmission from the outlet 5 side to the electric device 6 (step S70).
Next, for example, when the second connector 122 is disconnected from the first connector 121 (step S71), the authentication unit 51 in the first connector 121 detects the disconnection of the second connector 122, and outputs detection information indicating the detection result to the control unit 52 (step S72).
Next, the control unit 52 receives the detection information indicating that the second connector 122 is disconnected from the verification unit 51, and switches the switch 53 from the on state to the off state (steps S73 and S74).
Meanwhile, when the result information a1 received from the authentication unit 11 indicates that authentication of the counterpart device connected to the first connector 121 failed (no in step S68), the control unit 52 maintains the switch 53 in the off state (step S74).
After the transmission of the electric power is relayed through the first connector 121 and the second connector 122 (step S70), the disconnection of the second connector 122 from the first connector 121 does not have to be performed (step S71), and may be performed at any timing from step S61 or thereafter.
If the switch 53 is in the off state at the timing at which the second connector 122 is disconnected, that is, if the second connector 122 is disconnected before step S69, the switch 53 is kept in the off state. Meanwhile, if the switch 53 is in the on state at the timing at which the second connector 122 is opened, that is, if the second connector 122 is opened in step S69 or a step thereafter, the switch 53 is switched from the on state to the off state (step S73).
As described above, in the connector system 204 according to the fourth embodiment of the present disclosure, the first connector 121 includes the power line PL 63. The second connector 122 includes a power line PL 63. The processing unit 54 in the second connector 122 performs information transmission processing of creating authentication information and transmitting the authentication information to the first connector 121. In a state where first connector 121 and second connector 122 are connected to each other, switch 53 in first connector 121 selects whether or not to electrically connect power line PL53 and power line PL63 to each other. The authentication unit 51 in the first connector 121 performs authentication processing of authenticating the second connector 122 based on the authentication information received from the second connector 122. Then, the control unit 52 in the first connector 121 controls the switch 53 based on the result of the authentication process performed by the authentication unit 51.
As described above, the electrical connection between the first power line PL53 and the power line PL63 is switched based on the result of the verification process performed by the first connector 121. Therefore, when power line PL53 and power line PL63 perform power transmission, power is prevented from being transmitted to an unintended device.
In the connector system 204 according to the fourth embodiment of the present disclosure, the electrical connection between the devices can be controlled more appropriately.
Since other components and their operations are the same as those of the connector system 201 according to the first embodiment of the present disclosure, a detailed description thereof will not be repeated.
The features of the connector system 201 of the first embodiment, the connector system 202 of the second embodiment, the connector system 203 of the third embodiment and the connector system 204 of the fourth embodiment according to the present disclosure may be combined as appropriate.
The above embodiments are merely illustrative in all respects and should not be considered restrictive. The scope of the present disclosure is defined by the scope of the claims, not the above description, and is intended to include meanings equivalent to the scope of the claims and all modifications within the scope.
The above description includes features in the following additional description.
[ additional Note 1]
A connector system comprising a first connector comprising a first transmission line and a second connector comprising a second transmission line, wherein,
the second connector includes a processing unit configured to execute an information transmission process of creating information on authentication and transmitting the information to the first connector,
the first connector includes:
a switch configured to select whether to electrically connect the first transmission line and the second transmission line to each other in a state where the first connector and the second connector are connected to each other;
an authentication unit configured to perform an authentication process of authenticating the second connector based on the information received from the second connector; and
a control unit configured to control the switch based on a result of the verification process,
the first transmission line and the second transmission line are connected to different devices and relay communication signals or power transmitted between the devices, and
the authentication unit performs authentication processing using a digital signature as information.
[ additional Note 2]
A connector comprising a first transmission line, the connector comprising:
a switch configured to select whether to electrically connect the first transmission line and the second transmission line to each other in a state where the connector is connected to another connector including the second transmission line;
an authentication unit configured to perform authentication processing of authenticating a pairing apparatus connected to a connector; and
a control unit configured to control the switch based on a result of the verification process, wherein,
the first transmission line and the second transmission line are connected to different devices and relay communication signals or power transmitted between the devices, and
the authentication unit performs authentication processing using the digital signature.
[ additional Note 3]
A connector connectable with a counterpart connector including a first transmission line, the connector comprising:
a processing unit configured to create information on authentication and transmit the information to the counterpart connector; and
a second transmission line for transmitting the second transmission signal,
the mating connector includes:
a switch configured to select whether to electrically connect the first transmission line and the second transmission line to each other in a state where the counterpart connector is connected to the other connector;
an authentication unit configured to perform an authentication process of authenticating another connector based on the information; and
a control unit configured to control the switch based on a result of the verification process, wherein,
the first transmission line and the second transmission line are connected to different devices and relay communication signals or power transmitted between the devices, and
the other connector performs an authentication process on the connector by using the digital signature as information.
REFERENCE SIGNS LIST
1 wire harness
2 vehicle-mounted device
3. 4 communication device
5,15 socket
6. 16 electric device
7 plug
11. 31, 36, 51, 57 authentication unit
12. 32, 37, 52, 72 control unit
13. 33, 38, 53, 73 switch
14. 34, 35, 54, 74 processing unit
101. 111, 121, 131 first connector (mating connector)
102. 112, 122, 132 second connector
201. 202, 203, 204 connector system

Claims (13)

1. A connector system comprising a first connector including a first transmission line for communicating ECU information and a second connector including a second transmission line for communicating the ECU information,
the second connector includes a processing unit configured to execute information transmission processing of generating encrypted information on authentication and transmitting the information to the first connector via a communication line, and
the first connector includes:
a switch configured to select whether to electrically connect the first transmission line and the second transmission line to each other in a state where the first connector and the second connector are connected to each other;
an authentication unit configured to perform an authentication process of authenticating the second connector based on the information received from the second connector; and
a control unit configured to control the switch based on a result of the verification process.
2. The connector system according to claim 1, wherein the first connector and the second connector respectively include additional transmission lines that are electrically connected to each other without the switch interposed therebetween in the state in which the first connector and the second connector are connected to each other.
3. The connector system according to claim 1 or 2, wherein power regarding the operation of the first connector is supplied from the second connector.
4. The connector system according to claim 1 or 2, wherein the authentication unit starts the authentication process when the first connector and the second connector are connected to each other.
5. Connector system according to claim 1 or 2,
the switch is in an off state in a state where the first connector and the second connector are not connected to each other,
when the authentication unit has not received the information for a predetermined period of time or longer, the authentication unit notifies the control unit that the authentication has failed, and
when the control unit is notified of the verification failure by the verification unit, the control unit maintains the switch in an off state.
6. The connector system according to claim 1 or 2, wherein in the authentication process, the authentication unit receives the information on authentication from the processing unit through a wire.
7. The connector system according to claim 1 or 2, wherein the first and second connectors are mounted on a vehicle.
8. A connector system comprising a first connector comprising a first transmission line and a second connector comprising a second transmission line, wherein,
the second connector includes a processing unit configured to execute an information transmission process of creating information on authentication and transmitting the information to the first connector, an
The first connector includes:
a switch configured to select whether to electrically connect the first transmission line and the second transmission line to each other in a state where the first connector and the second connector are connected to each other;
an authentication unit configured to perform an authentication process of authenticating the second connector based on the information received from the second connector; and
a control unit configured to control the switch based on a result of the verification process,
wherein the processing unit starts the information transmission processing upon receiving a request for the information from the first connector.
9. A connector system comprising a first connector comprising a first transmission line and a second connector comprising a second transmission line, wherein,
the second connector includes a processing unit configured to execute an information transmission process of creating information on authentication and transmitting the information to the first connector, an
The first connector includes:
a switch configured to select whether to electrically connect the first transmission line and the second transmission line to each other in a state where the first connector and the second connector are connected to each other;
an authentication unit configured to perform an authentication process of authenticating the second connector based on the information received from the second connector; and
a control unit configured to control the switch based on a result of the verification process,
wherein the content of the first and second substances,
the authentication unit performs the authentication process periodically or aperiodically, and
after turning on the switch based on the result of the verification process, the control unit determines whether to turn off the switch based on a result of a new verification process.
10. A connector including a first transmission line for communicating ECU information, the connector comprising:
a switch configured to select whether to electrically connect the first transmission line and the second transmission line to each other in a state where the connector and another connector having a second transmission line for communicating the ECU information are connected to each other;
an authentication unit configured to perform authentication processing of authenticating a pairing apparatus connected to the connector based on information on authentication that is encrypted and transmitted from the other connector via a communication line; and
a control unit configured to control the switch based on a result of the verification process.
11. The connector of claim 10, being mounted on a vehicle.
12. A connector connectable with a counterpart connector including a first transmission line for communicating ECU information, the connector comprising:
a processing unit configured to generate encrypted information on authentication and transmit the information to the counterpart connector via a communication line; and
a second transmission line for communicating the ECU information,
the mating connector includes:
a switch configured to select whether to electrically connect the first transmission line and the second transmission line to each other in a state where the counterpart connector is connected to another connector;
an authentication unit configured to perform an authentication process of authenticating the other connector based on the information; and
a control unit configured to control the switch based on a result of the verification process.
13. A connecting method employed in a connector system provided with a first connector including a first transmission line for communicating ECU information and a second connector including a second transmission line for communicating the ECU information,
the first connector further includes a switch configured to select whether to electrically connect the first transmission line and the second transmission line to each other in a state where the first connector and the second connector are connected to each other,
the method comprises the following steps:
a step in which the second connector executes information transmission processing that generates encrypted authentication-related information and transmits the information to the first connector via a communication line;
a step in which the first connector performs an authentication process that authenticates the second connector based on the information received from the second connector; and
a step in which the first connector controls the switch based on a result of the authentication process.
CN201880091765.7A 2018-03-27 2018-11-30 Connector system, connector and connecting method Active CN111903010B (en)

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